[GRASS-user] polygon overlapping

GRASS GRASS user
1

hi, is it possible to create polygons based on points, so that the
polygons can share boundary (ideal case), but can not overlap - see
attached image.

v.hull does not solve the "can't overlap" problem

one possible solution:

1) v.hull
2) v.to.rast
3) r.patch
4) r.to.vect

But not so nice solution

Any hint?

Thanks

Jachym

(attachments)

polygon_creation_problem.jpg

2

Maybe concave hull can help?
http://grasswiki.osgeo.org/wiki/Create_concave_hull
________________________________
Agustin

On 19/07/2013, at 16:06, Jachym Cepicky <jachym.cepicky@gmail.com> wrote:

hi, is it possible to create polygons based on points, so that the
polygons can share boundary (ideal case), but can not overlap - see
attached image.

v.hull does not solve the "can't overlap" problem

one possible solution:

1) v.hull
2) v.to.rast
3) r.patch
4) r.to.vect

But not so nice solution

Any hint?

Thanks

Jachym
<polygon_creation_problem.jpg>
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3

On 19/07/2013, at 16:06, Jachym Cepicky<jachym.cepicky@gmail.com> wrote:

hi, is it possible to create polygons based on points, so that the
polygons can share boundary (ideal case), but can not overlap - see
attached image.

v.hull does not solve the "can't overlap" problem

v.delaunay ?
v.voronoi ?

Depending on how you want the polygons to relate to the points.

Moritz